Four extracts of petroleum ether, ethyl acetate, n-butanol and water were obtained from the methanol extract of the root bark in Periploca sepeium.

• 杠柳根皮甲醇提取浓缩物的水悬浮液经石油醚、乙酸乙酯、正丁醇不同极性溶剂萃取后,得到石油醚、乙酸乙酯、正丁醇和水的四种不同萃取物。